public function get_inference_result(Language_variable_collection $langvar_coll) { $output_coll = new Output_language_variable_collection(); $weight_array = $langvar_coll->get_weight_array(); $membership_matrix = $langvar_coll->get_membership_matrix(); for ($x = 0; $x < $output_coll->get_number(); $x++) { $min_array = array(); for ($y = 0; $y < count($weight_array); $y++) { $min_array[] = min(array($weight_array[$y], $membership_matrix[$y][$x])); } $max = max($min_array); $output_coll->set_membership($x, $max); } return $output_coll; }
public function get_inference_result(Language_variable_collection $langvar_coll) { $output_coll = new Output_language_variable_collection(); $weight_array = $langvar_coll->get_weight_array(); $membership_matrix = $langvar_coll->get_membership_matrix(); for ($x = 0; $x < $output_coll->get_number(); $x++) { $multiplication_array = array(); for ($y = 0; $y < count($weight_array); $y++) { $r = $weight_array[$y] * $membership_matrix[$y][$x]; $multiplication_array[] = $r; } $result = 0; for ($z = 0; $z < count($multiplication_array); $z++) { $result = $result + $multiplication_array[$z]; } if ($result > 1) { $result = 1; } $output_coll->set_membership($x, $result); } return $output_coll; }
protected function renew_function_variables() { //這邊請用k-means來做 $this->_CI_load('library', 'kals_resource/Webpage', 'webpage'); $function_variables = NULL; $webpage_id = intval($this->get_field('webpage_id')); $webpage = new Webpage($webpage_id); $annotation_coll = $webpage->get_appended_annotation(); //標註數量太少的話就沒有分群的價值,取消分群 if ($annotation_coll->length() < 20) { return $this; } $data = array(); foreach ($annotation_coll as $annotation) { $data[] = $this->get_feature($annotation); } $this->_CI_load('library', 'fuzzy/Output_language_variable_collection', 'output_language_variable_collection'); $membership = new Output_language_variable_collection(); $number = $membership->get_number(); $this->_CI_load('library', 'fuzzy/Clustering', 'clustering'); $clustering = Clustering::get_clustering(); $clustering->set_data($data); $clustering->set_clusters_number($number); $positions = $clustering->get_result_positions(); $function_variables = ''; foreach ($positions as $p) { if ($function_variables != '') { $function_variables .= ','; } $function_variables .= $p; } $this->set_field('function_variables', $function_variables); return $this; }